[CiPHPerCoder]

> One way encryption is a mathematical function that takes a variable-length input string and converts it into a fixed-length binary sequence.

So, a hash function and not encryption? Got it.

Sarcasm aside, we really need to start using the correct terms.

https://paragonie.com/blog/2015/08/you-wouldnt-base64-a-pass...

    Cryptography
    ||\
    | \`- Hash Functions
    |  `- Secret-Key Cryptography
    |    |\
    |     \`- Secret-Key Encryption
    |      `- Secret-Key Authentication
     \
      \
       `- Public-Key Cryptography
         |\
          \`- Public-Key Encryption
           `- Public-Key Authentication

Hashing is NOT encryption.

[15155]

"One-way encryption" is a terrible term - they mean "encryption that the encryptor cannot decrypt upon demand."

So, asymmetric cryptography.

[eru]

If you have good hashing, you can build encryption, though.

[CiPHPerCoder]

And if you have a good block cipher you can build a hash function.

Encryption is a reversible, keyed transformation of a message. If you cannot reverse it, it is not encryption. Calling it encryption just introduces confusion.

[eru]

I concur.